mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-31 16:02:52 +01:00
cf082ae903
This update was done with the following bash script:
find test/Transforms -name "*.ll" | \
while read NAME; do
echo "$NAME"
if ! grep -q "^; *RUN: *llc" $NAME; then
TEMP=`mktemp -t temp`
cp $NAME $TEMP
sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
while read FUNC; do
sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
done
mv $TEMP $NAME
fi
done
llvm-svn: 186268
70 lines
2.0 KiB
LLVM
70 lines
2.0 KiB
LLVM
; RUN: opt < %s -indvars -S | FileCheck %s
|
|
|
|
; This tests that the IV is not recomputed outside of the loop when it is known
|
|
; to be computed by the loop and used in the loop any way. In the example below
|
|
; although a's value can be computed outside of the loop, there is no benefit
|
|
; in doing so as it has to be computed by the loop anyway.
|
|
;
|
|
; extern void func(unsigned val);
|
|
;
|
|
; void test(unsigned m)
|
|
; {
|
|
; unsigned a = 0;
|
|
;
|
|
; for (int i=0; i<186; i++) {
|
|
; a += m;
|
|
; func(a);
|
|
; }
|
|
;
|
|
; func(a);
|
|
; }
|
|
|
|
declare void @func(i32)
|
|
|
|
; CHECK-LABEL: @test(
|
|
define void @test(i32 %m) nounwind uwtable {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%i.06 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%a.05 = phi i32 [ 0, %entry ], [ %add, %for.body ]
|
|
%add = add i32 %a.05, %m
|
|
; CHECK: tail call void @func(i32 %add)
|
|
tail call void @func(i32 %add)
|
|
%inc = add nsw i32 %i.06, 1
|
|
%exitcond = icmp eq i32 %inc, 186
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body
|
|
; CHECK: for.end:
|
|
; CHECK-NOT: mul i32 %m, 186
|
|
; CHECK:%add.lcssa = phi i32 [ %add, %for.body ]
|
|
; CHECK-NEXT: tail call void @func(i32 %add.lcssa)
|
|
tail call void @func(i32 %add)
|
|
ret void
|
|
}
|
|
|
|
; CHECK-LABEL: @test2(
|
|
define i32 @test2(i32 %m) nounwind uwtable {
|
|
entry:
|
|
br label %for.body
|
|
|
|
for.body: ; preds = %for.body, %entry
|
|
%i.06 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
|
|
%a.05 = phi i32 [ 0, %entry ], [ %add, %for.body ]
|
|
%add = add i32 %a.05, %m
|
|
; CHECK: tail call void @func(i32 %add)
|
|
tail call void @func(i32 %add)
|
|
%inc = add nsw i32 %i.06, 1
|
|
%exitcond = icmp eq i32 %inc, 186
|
|
br i1 %exitcond, label %for.end, label %for.body
|
|
|
|
for.end: ; preds = %for.body
|
|
; CHECK: for.end:
|
|
; CHECK-NOT: mul i32 %m, 186
|
|
; CHECK:%add.lcssa = phi i32 [ %add, %for.body ]
|
|
; CHECK-NEXT: ret i32 %add.lcssa
|
|
ret i32 %add
|
|
}
|